Asymptomatic first-trimester liver cell adenoma: diagnosis by fine-needle aspiration cytology with cytochemical and ultrastructural study.

A large asymptomatic first-trimester liver cell adenoma was diagnosed by fine-needle aspiration cytology. Therapeutic abortion was performed to reduce the rate of growth and achieve reduction in size before resection. Computed tomography scan evidence suggested that abrupt necrosis occurred after the therapeutic abortion, which might have precipitated an emergency partial hepatectomy. The tumor did not regress in size and was estrogen and progesterone receptor-assay negative.